jquery/jquery-mobile — pull request #4598 by MauriceG (2012-06-23 18:08:16+00:00)
Title: Docs: Change "or" to "and" at popup (data-attributes.html)

Because both attributes, ```data-role```at the popup div and ```data-rel```at the calling anchor, are necessary to open a popup.
It's not possible to open a popup with an anchor like ```Popup```, if the called div has no ```data-role="popup"``` set.
And it is also not possible to open a div without ```data-role="popup"``` just with a ```data-rel="popup"``` at the calling anchor.
This is a difference between popups and dialogs that may need some more explanation in the docs.